Re: [APML] Tech Pan Development question

["Jim Ives" <flyboy9990@earthlink.net>]

Hi Kent,
    I do have some Hypo Clearing Agent too. I'm glad I bought it! I'm going
to start out shooting prime focus with a SCT @ f/10 without a filter. I
thought later once I get useto it I might try a Ha filter. I don't want to
get into the filtered shots yet. I would like to but want to practice with
it first. I guess it would help to extend the rinse times ah?
Jim
----- Original Message -----
From: <KGKIRKLEY@aol.com>
To: <astro-photo@seds.org>
Sent: Monday, January 21, 2002 5:05 PM
Subject: Re: [APML] Tech Pan Development question


>
> In a message dated 1/21/02 2:31:48 PM, flyboy9990@earthlink.net writes:
>
> >Thanks Kent,
> >
> >    Yes it's D19. It takes 16oz (2 cups) to cover the reel in the
developer
> >
> >tank I just bought. I think I'm going to try the partial mixing at first
> >and
> >
> >see how it goes. I'm just going to shoot it normally exposed so I don't
> >
> >waste sky time. The guys at kodak said for normally exposed 2415 to set
> >my
> >
> >ASA to 200 and process in D19 for 8min. I'll probably try 10min with
> >
> >astrophotos though. That seems to be the going time from what I could
tell
> >
> >by the archives.
> >
> >    The fixer eliminator you speak of, is that Hypo Clearing Agent?
>
> Yes, Hypo Clearing Agent is a fixer-hypo eliminator.
> The purpose of washing the film is to remove all traces of the developing
> chemicals.
> Fixer is the hardest to remove. In 68 degree moving water, it can take 1/2
> hour or more to remove the fixer (for lasting permanence). If you use an
> eliminator it can shorten the wash time to 5 minutes or so. I use another
> called PermaWash, but it does the same thing. Before hanging the film up
to
> dry, put a drop or two of Kodak Photo-Flo-200 in the tank, let it sit for
a
> few minutes then unspool and hang it up. Even without squeeging, it will
dry
> spot free.
>
> By the way, developers can be reused before discarding. Some require
> replenishment with a replenisher. Some dilutions of developers are
'one-shot'
> use. With D-19, I never dilute but always process many rolls in the same
> quart of solution.
>
> Your exposure and developement time will depend on what kind of instrument
> you're using, it's speed (F number), any filters, how dark is your sky?
>
> Kent Kirkley
>
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